Cr~(3+)-doped CaMgSi2O6 crystal: a promising tunable laser and ultrashort laser crystal

摘要

This paper reports the growth and spectral properties of the Cr~(3+):CaMgSi2O6 (Cr~(3+):CMS) crystal. The Cr~(3+):CMS crystal was grown by the Czochralski method. Investigation of its spectral properties shows that the Cr~(3+):CMS crystal has broad, strong absorption and emission cross-sections. It has two broad absorption bands which center at 460 nm and 652 nm. The emission cross-section σ_e at 986.1 nm is 14.39 × 10~(-20) cm~2 at 300 K. The emission FWHM is up to 212 nm. Therefore, the Cr~(3+):CMS crystal can be considered as a potential tunable and ultrashort pulse laser crystal.